Automated Optical Inspection
Automated Optical Inspection (AOI) is a technology used in manufacturing, particularly in electronics assembly, to automatically inspect printed circuit boards (PCBs) for defects such as missing components, misalignments, solder bridges, and incorrect parts. It uses cameras, lighting systems, and image processing algorithms to capture and analyze images of PCBs at high speed, comparing them against a reference design or predefined criteria. This enables real-time quality control and reduces human error in visual inspection processes.
Developers should learn AOI when working in electronics manufacturing, quality assurance, or industrial automation to ensure product reliability and compliance with standards. It is essential for high-volume production lines where manual inspection is impractical, helping to detect defects early, reduce rework costs, and improve yield. Use cases include PCB assembly in consumer electronics, automotive, aerospace, and medical device industries.